I think the ones of the mountains would have been nicer if you were able to get a UV Haze filter.
__________________ "The most merciful thing in the world, I think, is the inability of the human mind to correlate all its contents. We live on a placid island of ignorance in the midst of black seas of infinity, and it was not meant that we should voyage far. The sciences, each straining in its own direction, have hitherto harmed us little; but some day the piecing together of dissociated knowledge will open up such terrifying vistas of reality, and of our frightful position therein, that we shall either go mad from the revelation or flee from the deadly light into the peace and safety of a new dark age."
A UV haze filter would have been nice, BUT in all honesty you aren't going to notice that huge of a difference, if anything I think a polarizing filter would have made everything look a lot better. Beautiful shots though. The first one has some flare from the window you were shooting out of. I really don't think there is anything you can do to get rid of it.
The shots at night are pretty beyond repair, plus, looking at them I don't know if I would bother trying to do anything to them, because no offense, but they aren't that interesting. What you needed there was a faster shutter speed because you are getting camera shake.